# TCSA: solving RG flows using Conformal Field Theory?

### APA

Hogervorst, M. (2014). TCSA: solving RG flows using Conformal Field Theory?. Perimeter Institute. https://pirsa.org/14120051

### MLA

Hogervorst, Matthijs. TCSA: solving RG flows using Conformal Field Theory?. Perimeter Institute, Dec. 16, 2014, https://pirsa.org/14120051

### BibTex

@misc{ pirsa_PIRSA:14120051, doi = {10.48660/14120051}, url = {https://pirsa.org/14120051}, author = {Hogervorst, Matthijs}, keywords = {Quantum Fields and Strings}, language = {en}, title = {TCSA: solving RG flows using Conformal Field Theory?}, publisher = {Perimeter Institute}, year = {2014}, month = {dec}, note = {PIRSA:14120051 see, \url{https://pirsa.org}} }

Matthijs Hogervorst L'Ecole Polytechnique Federale de Lausanne (EPFL)

## Abstract

The Truncated Conformal Space Approach (TCSA) is a method that allows for controlled calculations in strongly coupled quantum field theories. It can be used whenever a theory is conformally invariant at short distances, and allows infrared quantities to be calculated in terms of the CFT data of this UV theory.

As an example, I will discuss how the TCSA applies to phi^4 theory in D dimensions and I will show that the method reliably reproduces several nonperturbative phenomena.